This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X50STC, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.
Airtac SU32~50 Standard Cylinder SU50X50STC
The AirTAC SU32~50 Standard Cylinder SU50X50STC is a double-acting profile-type standard cylinder with a Ø50mm bore and 50mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X50STC, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke50 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X50STC
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SU32~50 Standard Cylinder SU50X50STC
The AirTAC SU50X50STC is a discontinued double-acting profile-type cylinder with a 50mm bore and 50mm stroke, delivering 982N push force at 0.5MPa. AirTAC replaced this legacy unit with the SAU50X50STC, a direct upgrade retaining the exact 1/4" port, M16x1.5 rod thread, 21mm cushions and TC mounting interface.
The SAU upgrade is shorter than an ISO 15552 cylinder of the same bore and reuses SC-series accessories. The built-in magnet on this -S SKU worked with legacy CS1-B/DS1-B switches, but the SAU replacement requires current CMSG/DMSG/EMSG sensors. The SAU family also adds a SAUF variant with a built-in 4M solenoid valve the SU line never offered.
Airtac SU32~50 Standard Cylinder SU50X50STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X50STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X50STC |
| Bore size | Ø50 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU50X50STC carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X50STC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU32~50 Standard Cylinder SU50X50STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Where the Airtac SU32~50 Standard Cylinder SU50X50STC Is Used
Component Clamping
Secures workpieces during machining with 982N of push force at 0.5MPa, providing stable holding without over-stressing lighter fixtures.
Package Diverting
Short 50mm stroke rapidly pushes lightweight goods off a belt line, fitting neatly into compact machinery profiles.
Stopper Gate
Acts as a pneumatic stop for pallets or totes, absorbing impact via the 21mm adjustable air cushions at both ends.
Replacing the Airtac SU32~50 Standard Cylinder SU50X50STC with the SAU50X50STC
To replace the SU50X50STC, order the SAU50X50STC with the same 50mm bore, 50mm stroke, 1/4" port, and TC mounting. Because this is an -S magnet model, note that your legacy CS1-B/DS1-B switches must be swapped to CMSG/DMSG/EMSG sensors for the SAU. If you need higher force, the neighbouring 63mm bore provides 1559N push at 0.5MPa; if you need less, the 40mm bore offers 628N. A plain cylinder does not hold load without live air, as the cushion only decelerates; use an external rod lock or pilot-operated check valve for secure holding. For automated actuation, consider the SAUF variant with its integrated 4M valve.
Replacement checklist
- ✓ Same bore / stroke → SAU50X50STC
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SU32~50 Standard Cylinder SU50X50STC FAQ
Yes, the SU50X50STC is discontinued. The direct replacement is the AirTAC SAU50X50STC. It shares the same 50mm bore, 50mm stroke, 982N output force, 1/4" port, and TC mounting, so it drops directly into the same application.
The 50mm bore delivers 982N push and 825N pull at 0.5MPa, 1374N push at 0.7MPa, and a 200kgf theoretical max at 1.0MPa. Because this is an -S model, it used legacy CS1-B/DS1-B switches; the SAU50X50STC replacement requires the newer CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X50STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X50STC replacement — usually within 7-8 hours.